Years ago, we had several oak barrels that fit with the nature of our landscape theme. Main reasoning of choice was portability. We had, and still have several unique and valuable sago palms, knew we would be moving within five years and want to take sago’s with us.
The barrels lasted for easily ten plus years in our climate, Southern CA. Basically, by the time we settled in new home and could plant sago’s in the ground, the barrels had served their purpose and we had no further use for them. Think a neighbor adopted them at that point and got several more years use.
Think the secret, if you are going to move it regularly, is to invest in a good hand dolly (rubber tired, inflatable) and support strap for transport. Also, drill many large (1/2’) drain holes at low spot in barrel (that’s around the outside edge usually) and don’t keep it soaking wet. Or, well-draining medium at very least! Sealing can be difficult to accomplish due to charred interior, if I remember right.
I wouldn’t hesitate to use again, they do look cool. Best of luck …….